Stainless Steel UV The PURA® UVSS Series is an advanced Ultraviolet Water Disinfection System. It has been designed with you, the consumer, in mind. The system will provide you with disinfected drinking water for years to come. These systems have been designed with the high quality construction and innovative features. Disinfection of water using Ultraviolet light at a wavelength between 200 – 300 nm is a chemical free way of destroying the DNA of microorganisms rendering them unable to replicate or cause infection. The axial flow chamber design of the PURA Stainless Steel Series, which is “in the bottom and out the side port” utilizes the energy from the Ultraviolet Lamp evenly across the water flow. Installation of the system is straight forward and simple. Maintenance of the system which includes changing the lamp once a year and cleaning the quartz sleeve periodically has been designed to be as simple as possible. UVSS Models: The PURA UVSS models include the following standard features of the entire series. Standard Features: • LED Display • Lamp Failure Visual and Audible Alarm • Lamp Change Reminder • Countdown Lamp Timer • Axial Flow Design • 115V / 60Hz North American 3-Prong Grounded Plug UVSS–M Models: The PURA UVSS-M models are constructed with all the features of the UVSS models plus the following. Additional Features: • UV Sensor to Monitor the Disinfection Dosage • Solenoid Output shuts down water flow using optional solenoid valve upon Lamp Failure, Power Failure or Low UV Intensity Alarm.